40125051 has 10 divisors (see below), whose sum is σ = 59940012. Its totient is φ = 26749980.

The previous prime is 40125047. The next prime is 40125053. The reversal of 40125051 is 15052104.

It is not a de Polignac number, because 40125051 - 2² = 40125047 is a prime.

It is a super-2 number, since 2×40125051² = 3220039435505202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40125053) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 247605 + ... + 247766.

Almost surely, 2^40125051 is an apocalyptic number.

40125051 is a deficient number, since it is larger than the sum of its proper divisors (19814961).

40125051 is an equidigital number, since it uses as much as digits as its factorization.

40125051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495383 (or 495374 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 40125051 is about 6334.4337552776. The cubic root of 40125051 is about 342.3512089245.

Adding to 40125051 its reverse (15052104), we get a palindrome (55177155).

It can be divided in two parts, 401 and 25051, that added together give a palindrome (25452).

The spelling of 40125051 in words is "forty million, one hundred twenty-five thousand, fifty-one".